Can-sealing machine.



moo 21 J. G. BOWERS 8: H. P. TOWNSEND.

OAK SEALING MACHINE. APPLICATION r unnwn :2, 190's.

Patented Feb. 4-, 1913.

a sums-sum '1.

LG. BOWERS & H. P. TOWNSEND.

Patented Feb. 4, 1913.

s sums-sum 2 CAN SEALING MACHINE. APPLICATION FILED JULY 22, 1909.

Zaizzzessesx fmw $5M.

J. C.-BOWERS & H. P. TOWNSEND:

CAN SEALING MACHINE.

APPLICATION FILED JULY 22, 1909.

1,052,032. Pa en e Feb.4,1913.

43 3 SHEETS-SHEET 3. F 6 24 "\Z/Q Q n Zlg n0 4/ 4 @544 f 6 ZO'Zfizesses)UNITED STATES, PATENT OFFIC JOHN C; BOWERS, E BOSTON, MASSACHUSETTS,ANIDHARRY P. TOWNSEND,

BURY, CONNECTICUT, ASSIGNORS TO WILLIAM H. EMERSON, OF NEWTON, CHUSETTS,AND ARTHUR H. PARKER, OF BEDFQRD, MASSACHUSETTS.

CAN-SEALING MACHINE."

To all whom, it may concern:

. in the county of New Haven and State of Connecticut, have invented anew and Improved Can-Sealing Machine, of which the following is aspecification.

Our invention relates to the class of machines employed for sealingcans, more especially those composed of thin metal, and the object ofthe invention among others is to provide a machine of this classwithflwhich cans may be effectually sealed in an el ipedi tious mannerand with little labor.

One form of machine in the use of which the objects sought may beattained is illustrated in the accompanying drawings, in which Figure 1is a perspective view showing the front of a machine embodying ourinvention. Fig. 2 is a perspective view, scale enlarged, of the lowerpart of the machine showing the rear and side. Fig. 3 is a detailperspective view,,scale enlarged, of a portion of the lower part of themachine with the parts broken away to show construction. Fig. 4 is adetail view in central vertical section, scale enlarged, over Figs.

2 and 3, tliroughtlie holding'die, showing especially its cap andtheremovable end of the presser. Fig. 5 is a detail top or plan viewshowing the holding fingers and their connections. Fig. 6 is a view inhorizontal section through the machine, the die clamp being removed.Fig. 7, is a view in front elevation, partially in vertical section, cutthrough the holding dies. Fig. 8 is a side View of the machine the mainshaft being cut away and the fly wheel removed.

In the accompanying drawings the numeral 10 denotes the.bed or base ofthe machine that may be supported upon any suitable standard, as legs 11or the like. A frame including side parts 12 and a head 13 rises fromand is supported on the base, and a driving shaft 14: to which afly-wheel 15 is secured is rotatably mounted in said head. The drivingshaft may be driven from any suitable source of power and is formed beSpecification of Letters Patent;

lug is located opposite said v plate. A pi-v 30 is secured to the slideplate 28 andf'lug 29, and two sections '31, 32 of a holding die 4 aremounted on this pivot-as by meansjof" I MASSA- mounted in slide-waysbetween the 'straps18 tween the side parts of the hea-d intofa crank onwhich a pitman 16' is mountedto connect the crank with a. sliding block-17 53 mounted in the drivingshaft 14 and is spring-pressed in a mannerwelLknownTin devices of this klnd toward the fly-wheel'15,

a socket in which wheel the bolt-engages' to connect said wheel with thedriving shaft.

A clutch lever 20 is pivotally supportedas at 21 on the head 13, the endof this; lever ,6,5, I

being cam-shaped and terminating in anarrow edge, so that it may engagebehind the-,-

shoulder on the clutch bolt as the latter'approaches the lever in therotation held'pressed toward the driving shaftas l fiuence ofits-spring, is forced towardthe. fiy-wheel and engages the recesstherein This clutches the fly-wheel to the driving shaft'ra-nd causesthe two to rotate together,

it beingunderstood that the fly-wheel is continuously rotated. I

All of the parts above described are of wellown construction in what areknown as .85

pillar pressesand further descriptionds" thereforedeemed unnecessaryherein, as the construction and operation of the parts will be readilyunderstood by those skilled the construction and. operation ofmachinesjf'of :91

this class.

machine and supports 24 rise from -t 1 1eba1s g-fl platenear the rear.Ears 25 project'latermovement. A slide plate 528 projects fromi,

of ithe driving shaft, and force said bo1t-from-en .7. gagement with thefiy-wheel; This leveriis,

means of a spring22 and when thelever is t: pressed down it isdisengaged from the. ,1. clutch bolt and the latter, under the in-v .15

I A base plate 23 is secured to the bed fffi 13 the forward end of theslide,fand a 1'ugf29 also projects from this forward end, which iPatent-tanner).4,1313 Application filed July22,1909. Serial No. 508,924.

.which is located a shoulder 38. Lugs 39 nates in a straight wall 37 atthe bottom of project from the sides of each of the sections of theholding die and'these lugs are pivotally connected bylinks 40 with theears 25.

, IA pair ofholdingfingers 41 are pivotally mounted-upon the slide plate28 underlying theholding die. These fingers are so formed that thespacebetween them' corresponds in shape to the opening through the holdingdie." I Each of the sections of the holding die is undercut'formingarecess 78 in which these fingers are located. The fingers are'pressed-toward-each other as by a spring Y42 and a space 43 is formedbetween; the fingers,

as this space being located immediately forward'of the-pivotal supportfor the fingers,

A slide operating lever 44 is pivotally supportedupon and locatedbetween the supports24; one end of this lever loosely engaging within asocket 45 in the slide 27 and the opposite end of the lever projectingtoward thejsliding block 17. 1 A bracket 46 islsecured to the .block 17and 2; lug 47- projects from said-bracket, which lugis located 35opposite an ear48 also projecting from the bracket. A plunger 49 islocated inthe lug 47' andis forced downward as by means of a spring 50.An adjusting screw 51 is 10- cated in the ear 48 and one'end of theslide operating lever 44 is located between the sp'ring plunger 49 andthe adjusting screw 51. This construction provides for a movement of thesliding block, and consequently the presser carried therebyindependently of the slide operating lever 44 and-therefore the slide27. The slide in itszbackward movement is arrested by a stop of anysuitable construction, and after it has encountered this stop thesliding block is permitted to move still farther without movement of theslide and for a purpose to be hereinafter described. A starting-lever 52is pivot-ally mounted in any suitable position, as -herein shown thislever being pivoted upon a rock shaft, 53 supported in a bracket 54secured tothe frame. This lever is connected by an actuating rod 55.with the clutch lever 20 which has a recess. 56 within which theactuating rod extends. This rod has a shoulder 79 engaging the upper endof the clutch lever at the edge of the recess, and said rod lies inposition to be struck by the clutch bolt 19 as the driving shaftrotates, wh1ch opera-. Q5 tion'rnoves-the rod to disengage the shoulderbeveled as at 36, which beveled part termifrom the clutch lever. Aspring 59 tends to hold the rod at the upper limit of its play and alsowith the shoulder 79 in engagement with the upper edge of the clutchlever.

A connecting rod 57 pivoted to i the clutch lever 20 extends to and ispivotally' connected with an arm 58 secured to one end of. the rockshaft 53. An arm 60 is also secured to this rock shaft, preferably atthe opposite end, which arm is connected by a link 61 with a. bell cranklever 62, pivotally supported on a stationary part of the machine, as onthe base-plate 23. This bell crank lever has a lug 63 adapted to. engagethe end of a holding finger operating lever 0 p 64 pivotally supportedon the slide plate 28 and having a stud 65 arranged to lie within thespace 43 between the fingers- A spring 66 exerts force upon the holdingfinger operating leverto hold said lever with the. stud 5 atthe-backward limit of its play. The space 43 is narrowed at its frontportion as at 67, this narrow portion decreasing in width toward thefront or can receiving space be-' tween the fingers; v

A recessGS is formed in the base-plate 23 and a can rest 69 is locatedin this recess, being yieldingly supported .as upon springs 70. Thisrest may be held in its recess in any convenient manner, as by means ofhold- 7 ing screws 71 the heads of which overlie the rest to retain itin position.

A press'er 72 is secured to the lower end of the block 17'and the faceor end 73 is removable andsecured in place in any suit- 10o able manneras by means of a screw 74.

A carrier 75, preferably in the form of a belt, travels in front of themachine, and the cans to be sealed are placed upon this carrier andmoved by it to position in front of the holding dies.

In order to secure the holding dies against swinging movement while thepresser is securing the seal a lock is provided, this consisting of alock plate 80 secured to the front of the block 17 as by means of screwspassing through the plate into holes 81 shown in Fig. 1 of the drawings.This plate has a lock recess 8.9,at its lower edge of a size to receivelock lugs 83 projecting from the front of the cap 35, as shown in Figs.3 and 6 of the drawings.

.The operation of the device briefly described is as follows: The partsof the machine being at rest, that is, with the block 17 i up and theholding dies and holding fingers open, the slide being in this positionat the forward limit of its play, and the fly-wheel rotating butdisconnected from the driving shaft 14, a can filled with material iscarried to a position. immediately in front of the holding dies. Thecover 7 6 of the can and the sealing strip 77 being in position on thecan, the operative moves the can from the carrier 75 on to thebase-plate 23 and'beincense was the holding fingers ii. The time oi thestarting lever 52 is nowpushed downward by the operative, moving theactuating rod 55. This causes the clutch lever to 7 he moved downward,disengaging it from the shoulder on the clutch bolt 19 and the latterunder the'lnfluence of its spring immediately moves inward and engagesthe. clutch recess in the flywheel when said recess arrives opposite thebolt. This clutches the fly-wheel to the driving shaft, causing thelatter to rotate. As the actuating rod is moved downward it moves theconnecting rod 57 and arm 58, rocking the shaft 53 and moving the arm60, which movement through the link 61 rocks the bell crank lever 62 anddisengages the lug 63' from the holding finger operating lever 64.

Said lever 64: is thus allowed to move backward underthe pull of thespring 66, so that the stud 65 is moved from the narrow part 57 of thespace between the fingers into the i-ztrger part, allowing th e fingersto 010mm.

gether under the pull of the spring 42 and tightly" holding the canwhich 'has heen' placed .in'position; This operation of releasing theholding fingers to enable them to grasp the can of course takes placebefore the driving shaft is started, as hereinbefore described.- As thedriving shaft rotates. the clutch bolt 19 strikes the end of theactuating rod 55 knocking it from engagement with the clutch'lever 20.Said lever then immediately springs back to its former posilion underthe'pu-ll of the spring 22 and with its nose in position to engage the'shoulder on the clutch-bolt when the latter ;1s

7 rotated around to this point. In this upward movement of the clutchlever the rock sh aft- 53;; is returned to its former position, which'mtivement causes the bell crank lever 62 to be swung so thatthe lug 63will lie in the path of 'movement of the holding finger operating lever64:. When pressure upon;

the holding, lever is released by the opera;-

tive the spring 59 will pull the operating.

rod 55'upward and also laterally, reengag- 3 ing it with the clutchlever' 20. The starting of the driving shaft moves the block 17 downwardswinging the slide operating levyer visland moving the slide 27 to. thebackward limit-of its play, said slide carrying with it the'iholding dieand the holding finslide moves-back the dies are caused to swing v gers..By reason of the connection of the fswingingiholding dies with thestationary support as by means of the links 40, as the together. toinclose and Support v the can Y therein. The dies are closed togetherasthe slide reaches the backward limit of its play and before the presserhasengaged the can "-topeud seal. "The yieldingengagement of the lever44 with the plunger 49 allows the sliding block, however, to continueits traveland-the pres'ser is thus brought into contact with the cantoor cover and seal. As the pressercgntmues its downward movement the can"alsore-moves slightly downward,

-which is permitted by. its support upon the yielding can rest 69; Thiscausesthe, edge of the can to travel along the beveled portion 36 of thecap 35 rolling the edge inward until the edge or lip is finally seatedon the shoulder 38. This movement of theipresser closes the folded edgeof the cover downward andpinches the folded edges of'the seal tightlyagainst thecover and the lip, thus effectually and hermeticallysealingthe.

can. In the movement of the slide 27 and plate 28 forward the lever 6ais carried against the lug 63 forcing the pin on the lever into thenarrow portion 67 .of the slot,

thus opening'the fingers 41, it being noted that thelever 64: is carriedaway from the lug 63 in the backward movement of the slide 27. Thefingers are thus-opened in position to receive a can. As the drivingshaft continues its rotation the clutch bolt 19 is brought intoengagement with the clutch. lever 20, the nose of which-is thrust inbehind the shoulder on the bolt, withdrawing it from therecessin thefiy-wheel, thus disconnecting the vfly-wheeland shaft and causing theoperation ofthe latter to ceases While we have-shown and described herer of the cover and seal inward whenever they are of a size toencounterthe beveled portion, but such parts are generally of a size to fitnicely within the recess bounded by the straight wall lo catedimmediately under :said beveled edge.

LWe claim' 1. A sectional holder die, a plunger ar-' ,ranged to operateupon an article held in said die, a holder die operating member to movethe die underneath the plunger and to remove it therefrom, a connectionbetween said plunger and die op'erating member for actuating the latter,and means connected with the holder die to open and close thedissections through the medium of thereciprocating movement ofthesect-ions.

2; A plunger with means for reciprocating it, a die support, a-sectionalholder d1e mounted on said support and having a reciprocating movementin a plane at rightangles to that of the plunger, and'a'plvoted,angularly formed lever engaging the plunger-and die supporting meanswhereby movement of the plunger imparted to cause movement of the holderdie.

3. A plungerwith means for operating it, a sectional holder die, meansfor mechanicallymoving said holderdie forwardly to position, un erneaththe plunger and for withdrawing it backwardly therefrom, and

' means operable from said movingmeans for a ing said, holder die toposition plunger and from said die moving mg and closing the opleniipgand closing the die sections. it, a sectional holder die, a dieoperating member, a connection between the plunger and the operatingmember for'operating the "closing the die sections.

plunger with means for operating nouaoaa "the plunger, connectionsbetween said plunger and slide and means for opening and 11. A slide, asectional holder die pivot ally mounted on said slide, a plunger withmeans for reciprocating it, a lever with one end engaging said slide andthe opposite end engaging said plunger, and means for opening andclosing the die sections.

12. A slide, a holder die composed of sections pivotally mounted on saidslide, a plunger with means for operating it, connections'between' theslide and plunger. for

latter, a connection between said die operat- ,ing member and holder dieto move the latter to position under of the holder die causes an openingand closmounted at one side,

ing movement pf the die sections.

6. A plunger with means for operating it, a holder die composed ofsections pivotally means for moving the i die to position beneath theplunger and to withdraw it therefrom,

I it, a holder die composed said .sections through "nection between eachand a'link pivotally connecting each of said sections withafixedsupport. I Y

7. A plunger'with means for operating of'sections mount; ed to swingupon a common pivot, means for imparting rectilinear movement to saiddie forwardly. to position beneath the plunger and 'backwardlytherefrom, and meansjfor opening and closing the die sections.

8. A plunger with; means for operating it, a holder-die composed ofsections mounted to swing upon a common pivot, means for impartingrectilinear movement to the die forwardly to position beneath theplunger and backwardly therefrom, and a memberfattached to each of thedie sections arranged to effect opening'and-closing movement of theagency of said. movement beneath and from under said' plunger. a

9. A plunger with means 'for operating it, a holder die composed ofsections pivotally mounted, a slide supporting said pivot, means forreciprocating the slide, and a conof the dissections and a fixed partwhereby the movement of the slide' opens and closes the die sections.

10. A slide, a holder die composed of sections pivotally mounted on saidslide, aplunger arranged to operate said slide, said plunger beingarranged article slide, a plunger operating the former by the movementofthe latter, and members connected with the die sections and constructedand arrange to effect opening and closing movement of said die sectionsthrough the agency of movement of said slide.

13.'A slide, a holder. die composed of sectionseach pivotal-1y mountedon said slide, a link connection between each of-the die sections andaimed support, means for operating the slide, and a 'plunger with meansforvoperating it.

14:. A plunger with means for operating it, a sectional holder'dieincluding a pivoted die section, means for imparting rectilinearmovement to saiddieforwardly to position underneath the plunger andbackwardlv therefrom, andm eansfor swinging said sec"- tion on itspivotlthrough the agency of' movement of the die. a

15. A plunger with means for operating i.,' a slide 'operativelyconnected with. said plunger to be operated thereby, a sectional holderdie including a section pivoted to .said slide, anda memberattached tothe pivoted die section and constructed and arranged to effect swingingmovement thereof on its. pivot through the agency of move} ment ofsaidslide,

116. A- slide,-.a holder die carried by said adapted to operate upon anarticle held by the die, a connection between said plunger and slide forreciprocating thelatter, and means arranged to permit movement of theplunger without movement of said slide.

' 17. A slide, a holder die carried by said slide, a plunger arranged tooperate upon an article held by thedie, a connection between saidplunger andlslide to reciprocate the latter, said connection including alever engaged by said plunger, and a yielding connection between saidlever-and plunger :11-

lowing movement of the latter with the slide at rest. 7 18. A plungerwith it, a slide having a forked end, means-for operating the slide, apivotextending between the pro'iigs 'of'said fork, a holder die held bysaid die,'means for operating l i g including sections 'each-pivotallymounted to oper 1113011 an on said pivot, an'dfmeans for opening and thedie sections.

means for operating 19. A plunger with means for operating it, a holderdie composed of sections, means to! opening and closing the diesections, and holding fingers arranged to grasp an article locatedWithin said die.

20. A plunger with means for'operating it, a holder die composedofsections, means for opening and closing said sections, hold means foropening and closing said die sections, a plunger positioned to operateupon an article held by said die sections and means carried bv saidplunger to engage and. secure said die sections together when closed.

23. A holder die composed of sections, a plunger, means for operatingthe plunger, connections between the plunger and die sections to effectopening and closing movement'of the latter, and a member carried by saidplunger and arranged to secure -said die sections together when closed.I

24, A s'licle,a holder die composed'of sections carried by said slide, aplunger constructed to move saidslide to carry said die underneath theplunger and remove it therefrom, operative connections between theplunger and slide, means for operating the plunger, and a member carriedby the plunger andarrangedto secure the die sec.-

' tions together when closed. 40

25. A holder die composed of. sections, means for opening and closingsaid die sections, a plunger arranged to operate upon an article held-bysaid die," and a locking member carried by said plunger and arranged toengage the die sections and secure 7 them together. a

26. Aplunger with means for operating it, a holder die composed ofsections, means, for reciprocating-said die to place'lt under:

neath the plunger and'for removing it therefrom, a member connected witheach die section andconstructed-and arranged to effect opening andclosing movement of said sections through the agency of movement to andfrom beneath-the plunger, and means for securing the die sections intheir closed position.

-.27. A plunger with means for operating for reciprocating saiddie toand from be- .neath said plunger, means for opening and closing said diesections through the .me-

dium of said reciprocating movement, and

a member secured to said plunger and arranged to secure the die sectionsin their closed position.

28 A slide, a plunger with means for op-' erating 1t, a connect-ionbetween the plun.

ger and slide for operating the latter," said connection including alever, a connection between said lever and plunger to permit movement ofthe latter without movement of the lever, a holder die secured to saidslide and composed'of sections, and means a a withln said d1e,. and aconnection between said lever and fingers arranged to operate the latterin the movement of the former,

ing it, a self-actuated means for. stopping the movementof the plungerineach complete reciprocation, a leverlfor starting, said operating means,a holder die, fingers 10- cated to grasp anarticle located within saiddie, means for moving said die and fingers to position beneath theplunger and -Jtor re- 131. A holder die, meansfor imparting re -movingthem therefrom, and a connection Ltween said lever and fingers forflclosing the latter in the operation of the forrnei; and for openingthe fingers movement.

ciprocating. movement to said die, h olding fingers to'gra'sp an articleinclose'd within said die, means for opening said fingers,',and

. means for mechanicallyfclosing them.

- 32. A holder die, means for reciprocating said die, holding fingerspivotally mou tjitled to grasp an article located within said} ie,

a holding finger operating lever, means lo cated within thepath'of-movement of said lever to operate'said' fingers, and means forwithdrawing'said finger operatin 'means.

33. A.- holder diewith means f r impart ing reciprocating movementthereto, holding fingers pivotally amounted to grasp an article,locatedwithin said dies, a holding finger operating lever, a bell,-crank lever ment of the finger operating lever, and means forwithdrawing said lug from the path of movement. of the finger operatinglever. 1 L

. 34. A- holder die withineansfor imparting reciprocating movementthereto, a start-. i. ing lever, fingers pivotally mounted to grasp anarticle locatedwithin said die, .a holding finger operating. lever, a*bell crank lever having a lug-located in'the path of 'movetheirsliding:

' s5 30. A plunger with means for reciprocat- -having'a lug-located inthe pathof move- -ment of the finger operating'levenand -a .1 I

connection between the starting leverendr bell crank'lever arranged towithdraw said lug in a movement of the starting lever to start thedie,"and means vfor returning said lug to position in the path ormovement of the finger operating lever.

I 35. A'holder die, fingers pivotallymount- ,ed-tograsp an articlelocated within said '-.die,='means for imparting reciprocating movementto said die, a lever self-actuated.

in one direction to stop the reciprocating 1 movementnof said die,.meansfor actuating said lever in theopposite direction, andconnectionsbetween said lever. and said fingers arranged to close saidfingersin the. operai p Ta i art; a,

means for reciprocgjt rngihe die, a lever self itiqn'of said lever tostart said reciprocating movement of the die. a i

-36. A.-,holde' e, fingers arranged to located .within said die,

actuated stop:- said "reciprocating nioveme t,,?a';coi1nection betweensaid lever and end-. '8 and said; selfeactuatedlever to withdraw the-rocating movement thereof.

fingefs-foropening them, astarting lever,

connection between said starting lever latter to permit. movement of theparts.

37.: ,A'sectional holder die with means for ho ding gers mounted toreciprocate with said die, a plunger with means for operating it,connections with the die sections for opening" and closing them throughthe agency of reciprocating movement hereof, and connections with saidfingers forv operatingthem through the agency of the-recip- 38.Aiplunger with' means for'operating holder die, fingers arranged tograsp an article located within said die, said fingers having a bodilyreciprocating move- Inent, a finger operating lever, a rockingleverhaving a lug arranged to be interposed in the path of movement ofsaid operating impartin reciprocating movement thereto,

meshes lever, means for withdrawing the rocking lever from the path ofmovement of sai operating lever, and means for .automati cally returningsaid rocking lever to the path of movement of the operating lever.

89. A holder, dieco-nstructed to grasp -an article located in a recessin said die thathas a finger recess at its under side, fingers locatedwithln said finger recess, and means for operating said fingersindependently of said die to hold said article.

- 40, A, plunger with means for operating it, a slide, means foroperating the slide, a pivot borne by said slide, a sectional holder die,havin each die section mounted on said pivot, an a linkpivota-llyconnecting'each die section with a fixed support.

41. A plunger with means for operating it, a slide, a'lever with one endengaging said plunger and the opposite end engaging said slide, asectional die holder pivotally mounted on' said slide, and means for restraining movement of the die sections to cause the-slide in itsmovement to open-and close said'sections.

42. A holder die composed of sections arrangedto'open and close, aplunger pos1- "tioned for reciprocating movement to operate upon anarticle held by said die, means 'for operating to said die to move it toa posi-'.

